DaikinAC Energy Recovery Ventilator: VAM 300GVJU ; VAM 470GVJU ; VAM 600GVJU ; VAM1200GVJU – Service Manual

This Service Manual is for Energy Recovery Ventilator

MODELS: VAM 300GVJU ; VAM 470GVJU ; VAM 600GVJU ; VAM1200GVJU
 

CONTENTS:

  • 1. Introduction … iii
  • 1.1 Safety Cautions … iii
  • 1.2 Safety Symbols … viii
  • General Information

  • 1. Model Names … page 2
  • 2. External Appearance … page 2
  • 3. Constructions … page 3
  • Operation

  • 1. Operation … page 6
  • 1.1 Explanation for Systems … page 6
  • 1.2 Operating the Energy Recovery
    Ventilator Using the Remote
  • Controller of the VRV-System Air
    Conditioner … page 8
  • Maintenance

  • 1. Maintenance (for a qualified service
    person only) … page 11
  • 1.1 How to Clean the Air Filter … page 11
  • 1.2 How to Clean the Heat Exchanger Core … page 14
  • Control Functions

  • 1. Control Functions … page 16
  • 1.1 List of Control Functions … page 16
  • 1.2 Explanation of Individual Functions … page 17
  • 1.3 Layout of switches on PCB … page 24
  • Service Diagnosis

  • 1. Troubleshooting … page 27
  • 1.1 Error Code Display … page 27
  • 1.2 Overall Alarm … page 29
  • 1.3 Overall Error … page 30
  • 1.4 Indoor Air Thermistor Error … page 31
  • 1.5 Outdoor Air Thermistor Error … page 32
  • 1.6 Damper System Error (Alarm) … page 33
  • 1.7 Damper System Error (Alarm) … page 35
  • 1.8 Dedicated LCD Remote Controller … page 36
  • 1.9 Transmission Error between Remote
    Controller and Main Unit … page 38
  • 1.10 Transmission Error (Remote
    Controller) … page 40
  • 1.11 Transmission Error between Main Remote Controller
    and Sub Remote Controller … page 41
  • 1.12 Field Setting Error … page 42
  • 1.13 Duplication of Centralized
    Remote Controller … page 43
  • 1.14 Main Unit PCB Abnormality … page 44
  • 1.15 Dedicated LCD Remote Controller … page 46
  • 1.16 How to Check … page 47
  • 1.17 Thermistor … page 48
  • 1.18 Power Transformer … page 49
  • 1.19 Damper Motor … page 51
  • 1.20 Check … page 52
  • Supplementary Explanation … page 53

  • 1. Service Mode … page 54
  • 1.1 BRC1E71 … page 54
  • Appendix

  • 1. Wiring Diagram … page 57
  • 1.1 VAM300GVJU / VAM470GVJU / VAM600GVJU … page 57
  • 1.2 VAM1200GVJU … page 58